Hello. This is an AU story of what I wish could happen with season 4. I'm a big fan of Karofsky, so I'm sending him back to McKinley to repeat his senior year. Also, I'm not following the students in college, just the ones still at McKinley. And I'm making up my own storylines, not really following anything that happens on the actual show. Enjoy!

CHAPTER ONE: I'M A SENIOR! (AGAIN)

MORNING - THE PRINCIPAL'S OFFICE

David Karofsky couldn't believe what he was hearing. After dropping out of Thurston and turning to homeschooling, he was now being told my Principal Figgins that he had to repeat his entire senior year. He'd gone to McKinley to make sure he had all of his credits, but apparently he was missing more than half. Dave mentally cursed. "So what do I do?"

"I suggest you repeat your senior year here at McKinley," answered Figgins.

Dave nodded. Since he was a legal adult now, he could make the choice all by himself. He wanted to think about it, because Santana and Kurt, his only two true friends, were graduated. But Dave couldn't even think about it. He just had to accept the fact that he would have to come back to McKinley or not graduate high school. "Okay. Sign me up. I'm coming back to McKinley."

LATER - THE HALLWAY

Sam Evans walked down the hallway, holding his books under his arm. He smiled as Dave passed him. "Hey, Karofsky."

Dave nodded to Sam.

Wait. Karofsky? Sam turned. "Karofsky?"

Dave stopped and turned to look at Sam. "Yeah. Turns out I have to repeat my entire senior year of high school, and Figgins suggested I come back here. I agreed with him, and here I am."

"So, you're going to be here all the time now?" asked Sam.

Dave nodded. "Yeah, I don't think I'll play football, though. I mean, I love football, but I'm just going to focus on classes this time around."

Sam smiled. "Maybe you could join glee."

Dave shrugged, smiling back at Sam. "You never know. I just might."

Dave turned and walked away. Sam had just been kidding, but Dave could join glee if he wanted to. Only Sam himself, Artie, Brittany, Tina, and Blaine knew who he was anyways. Marley, Sugar, Joe, and Wade probably had never even heard of David Karofsky. Plus, Dave had apologized to Kurt many times and the two had even become friends.

AFTER SCHOOL - THE CHOIR ROOM

Will Schuester stood in front of the glee club, smiling. They all looked confused. Artie was the first to speak. "Mister Schue, you look creepy."

"Sorry, guys, I'm just excited about a certain person who has come to audition for the glee club," explained Mr. Schue. He turned toward the band, signaling for them to start music.

Sam's face turned pink, because he knew who would suddenly appear in the room, and he was right. Dave Karofsky literally slid into the room. "Start spreading the news. I'm leaving today. I wanna be a part of it: New York, New York..."

All of the seniors minus Wade looked around at each other. Sam shrugged. As Dave finished "New York, New York", the seniors clapped slowly while Marley, Sugar, and Joe clapped excitedly.

Mr. Schuester smiled again. "Most of you know that this is Dave Karofsky. He's repeating his senior year at McKinley, and he's decided to join the glee club. I think that audition was amazing. You're in, Dave."

"Hey, Dave," said Wade, waving without smiling.

"You two know each other?" Blaine asked.

Wade nodded. "Yeah. You remember that bully Azimio who used to run around with Dave throwing slushies in everyone's faces? He's my older brother. I've known Dave since we were in elementary school."

"And why do you look like you want to kill him?" Artie asked Wade.

Wade opened his mouth to speak, but Dave cut him off. "Because the last time we saw each other, before Wade decided to live with his and Z's mom instead of their dad, Wade kissed me and I shoved him into a wall. But I'm sorry, Wade. That never should have happened. I've changed."

Blaine narrowed his thick eyebrows, looking at Dave. "Is this before you kissed Kurt? Why you started questioning your sexuality?"

Dave looked around the room silently. He was out, but it still felt strange to have people talk about it so openly. He answered Blaine's question with a nod.

Wade let out a loud laugh. "I made you question your sexuality? Damn. I must be a good kisser."

Dave shrugged. He smirked. "You're alright."

Wade smiled. "But if you're gay, I'm sorry, because I dress up like a woman half the time, and I don't think you would go for that, Davey."

"No. I wouldn't go for that," said Dave, quietly. Before anyone could say anything else, Dave sat down next to Blaine. "And thank you, Blaine, for making an effort to kick me out of the closet before."

"You're welcome, David," said Blaine, smiling. "I'm proud of you for not punching people in the face for saying you're gay now."

Dave laughed, looking at Mr. Schuester. "And thanks for believing in me."

"No problem, Dave," smiled Mr. Schue.

THE NEXT MORNING - ENGLISH CLASS

Unique leaned closer to the desk next to her, where Dave sat. She whispered, "So I told Az about you coming back here to redo your senior year, and he pretended like he didn't even know who I was talking about. Do you believe that?"

"I actually do believe that," started Dave. "Z and I have been through so much together, but as soon as he found out I was gay, he just started pretending like I didn't even exist. Apparently he's still doing that. What is his problem, anyways?"

Unique just shrugged and went back to taking notes. A few minutes later, however, she leaned close to Dave again. "So, do you like anyone?"

"Well Sam's always had a nice ass, but he's not gay," answered Dave. "I swear, we are the only gay guys in the school."

"Hello, did you forget about Mister Cute Bow Tie?" asked Unique.

Dave grimaced. "Him? No. Sure, he's cute, but he'd never go for me. He's still with Kurt, and even if he wasn't, I doubt he'd go from Kurt to me. We're complete opposites."

Unique shrugged again. "You never know, Davey."

"Yeah, I do know," whispered Dave. He turned back to his notes, squinting at the board in the front of the room.

Please review. This chapter was mostly Karofsky, but like I said before, a different person will be featured in each chapter. Next chapter features Harmony.